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Damage tolerance is a property of a structure relating to its ability to sustain defects safely until repair can be effected or the structure replaced. The approach to engineering design to account for damage tolerance is based on the assumption that initial flaws exist in any structure and such flaws propagate with usage. This approach is commonly used in aerospace engineering to manage the extension of cracks in structure through the application of the principles of fracture mechanics. The term is commonly used to indicate the following characteristics of a component or material:

  • the effects of impact (what size, shape, force of an impacting object will cause structural failure?)
  • the conditions required to cause metal fatigue
  • the ability to withstand fatigue (how long will the part last under a certain type of loading)
  • the residual strength of the part after it has undergone impact or fatigue

In aerospace engineering, structure is considered to be damage tolerant if a maintenance program has been implemented that will result in the detection and repair of accidental damage, corrosion and fatigue cracking before such damage degrades structural strength below an acceptable limit.

The damage tolerance (fail safe) design philosophy requires that the structure is able to withstand designed modes of damage due to fatigue, corrosion and accidental damage at probable locations. [1]

External links

  1. ^ Hendrich and Quaak, Aero-Design Holland ©, Aero is our life

Damage tolerance is a property of a structure relating to its ability to sustain defects safely until repair can be effected or the structure replaced. The approach to engineering design to account for damage tolerance is based on the assumption that initial flaws exist in any structure and such flaws propagate with usage. This approach is commonly used in aerospace engineering to manage the extension of cracks in structure through the application of the principles of fracture mechanics. The term is commonly used to indicate the following characteristics of a component or material:

  • the effects of impact (what size, shape, force of an impacting object will cause structural failure?)
  • the conditions required to cause metal fatigue
  • the ability to withstand fatigue (how long will the part last under a certain type of loading)
  • the residual strength of the part after it has undergone impact or fatigue

In aerospace engineering, structure is considered to be damage tolerant if a maintenance program has been implemented that will result in the detection and repair of accidental damage, corrosion and fatigue cracking before such damage degrades structural strength below an acceptable limit.

The damage tolerance (fail safe) design philosophy requires that the structure is able to withstand designed modes of damage due to fatigue, corrosion and accidental damage at probable locations. [1]

External links

  1. ^ Hendrich and Quaak, Aero-Design Holland ©, Aero is our life

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